/* Copyright (c) 2025, Huawei Technologies.
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0  (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

const removePrototypePollution = (obj: any): void => {
  if (obj && typeof obj === 'object') {
    for (let key in obj) {
      if (key === '__proto__' || key === 'constructor') {
        delete obj[key];
      } else if (typeof obj[key] === 'object') {
        removePrototypePollution(obj[key]);
      }
    }
  }
};

export const safeJSONParse = (str: any, defaultValue: any = null): any => {
  try {
    const res = JSON.parse(str);
    removePrototypePollution(res);
    return res;
  } catch (error) {
    return defaultValue;
  }
};
